diff --git a/metagpt/actions/write_code_review.py b/metagpt/actions/write_code_review.py
index f9cebffac..e0a538fc8 100644
--- a/metagpt/actions/write_code_review.py
+++ b/metagpt/actions/write_code_review.py
@@ -94,7 +94,7 @@ class WriteCodeReview(Action):
     def __init__(self, name="WriteCodeReview", context=None, llm=None):
         super().__init__(name, context, llm)
 
-    @retry(stop=stop_after_attempt(2), wait=wait_random_exponential(min=1, max=60))
+    @retry(wait=wait_random_exponential(min=1, max=60), stop=stop_after_attempt(6))
     async def write_code_review_and_rewrite(self, prompt):
         code_rsp = await self._aask(prompt)
         result = CodeParser.parse_block("Code Review Result", code_rsp)
diff --git a/metagpt/document_store/faiss_store.py b/metagpt/document_store/faiss_store.py
index 53725c3f9..b1faa3538 100644
--- a/metagpt/document_store/faiss_store.py
+++ b/metagpt/document_store/faiss_store.py
@@ -5,6 +5,7 @@
 @Author  : alexanderwu
 @File    : faiss_store.py
 """
+import asyncio
 import pickle
 from pathlib import Path
 from typing import Optional
@@ -58,6 +59,9 @@ class FaissStore(LocalStore):
         else:
             return str(sep.join([f"{x.page_content}" for x in rsp]))
 
+    async def asearch(self, *args, **kwargs):
+        return await asyncio.to_thread(self.search, *args, **kwargs)
+
     def write(self):
         """Initialize the index and library based on the Document (JSON / XLSX, etc.) file provided by the user."""
         if not self.raw_data_path.exists():
diff --git a/tests/conftest.py b/tests/conftest.py
index 0cef6a4c9..b22e43e79 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -7,6 +7,7 @@
 """
 
 import asyncio
+import logging
 import re
 from unittest.mock import Mock